“We know Arctic sea ice is declining faster than the models predict,” Mann told the Guardian at the SXSW Eco conference in Austin, Texas. “When you look at the major Greenland and the west Antarctic ice sheets, which are critical from the standpoint of sea level rise, once they begin to melt we really start to see sea level rises accelerate.
“The models have typically predicted that will not happen for decades but the measurements that are coming in tell us it is already happening so once again we are decades ahead of schedule.”
“Island nations that have considered the possibility of evacuation at some point, like Tuvalu, may have to be contending those sort of decisions within the matter of a decade or so.”
‘Once Again We Are Decades Ahead Of Schedule,’ Says Michael Mann About Looming Sea Level Rise
Current state of the "hoax."
Actually, it's happening like James Lovelock initially predicted (and later retracted after much criticism). Lovelock initially said that research was only on single systems and ignored interconnection and nesting, so that the consequences of system complexity would likely unfold in unexpected way. He hypothesized that the time frame would likely be muh shorter than anticipated based on summing single studies due to knock-on effects.